.settings-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border-soft);
  padding-bottom: 0;
}
.tab-btn {
  padding: 12px 24px;
  border: none;
  background: transparent;
  font-size: 14px;
  color: var(--text-muted);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  border-radius: var(--r) var(--r) 0 0;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.tab-btn:hover { color: var(--text-soft); }
.tab-btn.active { color: var(--ink); border-bottom-color: var(--gold); background: var(--paper-card); }

.tab-content {
  display: none;
}
.tab-content.active { display: block; animation: fadeIn 0.25s ease; }

.table-header {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 14px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--paper-card);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  display: table;
}
.settings-card-list { display: none !important; }
.data-table thead th {
  background: var(--ink);
  color: #fff;
  font-weight: 500;
  font-size: 13px;
  padding: 12px 16px;
  text-align: left;
  letter-spacing: 0.5px;
}
.data-table tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-soft);
  font-size: 14px;
}
.data-table tbody tr:hover { background: rgba(184,145,70,0.06); }
.data-table tbody tr:last-child td { border-bottom: none; }

.action-btns {
  display: flex;
  gap: 6px;
}
.action-btn {
  padding: 4px 10px;
  font-size: 12px;
  border-radius: var(--r-sm);
  cursor: pointer;
  border: none;
  transition: all 0.15s;
}
.action-btn.edit { background: rgba(184,145,70,0.1); color: var(--gold); }
.action-btn.edit:hover { background: rgba(184,145,70,0.2); }
.action-btn.delete { background: rgba(192,57,43,0.1); color: var(--red); }
.action-btn.delete:hover { background: rgba(192,57,43,0.2); }

/* 数据管理 - 危险操作区 */
.data-danger-zone {
  background: var(--paper-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
  padding: 24px;
  box-shadow: var(--shadow);
}
.data-danger-zone h3 {
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--red);
  margin-bottom: 6px;
  letter-spacing: 1px;
}
.data-danger-zone > .danger-desc {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.danger-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px;
  border: 1px solid var(--border-soft);
  border-radius: var(--r);
  margin-bottom: 12px;
  background: var(--paper);
  transition: all 0.2s;
  gap: 16px;
}
.danger-item:hover {
  border-color: rgba(190, 76, 76, 0.4);
  background: rgba(190, 76, 76, 0.03);
}
.danger-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 4px;
}
.danger-item .danger-desc {
  font-size: 13px;
  color: var(--text-muted);
}
.btn-danger {
  background: var(--red);
  color: #fff;
  padding: 8px 18px;
  border-radius: var(--r);
  font-size: 13px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.btn-danger:hover { background: #c24545; transform: translateY(-1px); }
.btn-danger:active { transform: translateY(0); }

@media (max-width: 768px) {
  .settings-tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 2px;
    -webkit-overflow-scrolling: touch;
  }
  .settings-tabs::-webkit-scrollbar { display: none; }
  .tab-btn {
    padding: 10px 18px;
    font-size: 13px;
    white-space: nowrap;
    flex-shrink: 0;
  }
  .data-table { display: none !important; }
  .settings-card-list { display: block !important; }
  .setting-item-card {
    background: var(--paper-card);
    border-radius: var(--r);
    padding: 14px;
    margin-bottom: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
    border-left: 3px solid var(--gold);
  }
  .setting-item-card .si-info { flex: 1; min-width: 0; }
  .setting-item-card .si-name {
    font-weight: 600;
    color: var(--ink);
    font-size: 15px;
  }
  .setting-item-card .si-sub {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
  }
  .setting-item-card .si-actions {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
  }
  .setting-item-card .si-actions button {
    padding: 6px 10px;
    font-size: 12px;
    border-radius: var(--r-sm);
    border: none;
    cursor: pointer;
  }
  .table-header { margin-bottom: 12px; }
}